A2f ATOMY OF THE J.JZARD. 



493 



(E^ 



I th 



<Ki 



tlu; 



^ 



Fig. 440.— Anatomy of a lizard, Sceleporus undulatus. t, trachea ; C, carotid artery; 

 tk, thyrrnd gland ; h, ventricle of the heart — above are the two auricles; In, lun^: 

 I, liver turned out; s, stomach ; i, intestine; a, vent — above it the cloaca is laid 

 open to disclose the openings (o o) of the kidneys {lc)\ above are the two openings of 

 the oviducts; n, oviduct; o, ovary ; y, vena cava; /, fat-body.— Drawn by A. F. 

 Gray from diswectlons made by the author. 



